Protected metal sheet.



E. Tl NEWSOME.

PROTECTED METAL SHEET. APPLIoATIoN FILED nso. 15, 1910*.

1,002,301, Patented Sept. 5, 1911.

eASML WUESSES: l ITUQETDJDT,

QQMM@ i @www 172, a detail in plan with the parts broken away to more clearly show the construc 150. and, for the best results, free or substan4 f UNITED, STATES PATENT OFFICE. EDGAR THOMAS'NEINSOMELOF BOSTON, MASSACHUSETTS, ASSIGNOR TO ASBESTOS PROTECTED METALb COMPANY, OF CANTON, MASSACHUSETTS, A CORPORATION OF v MASSACHUSETTS the accompanying drawings, is a specica' tion, like letters on the drawings representing like parts.

This invention relates tofroofing and siding material for building and other purposes ,of Vthat class in which a metal sheet has [affixed to its opposite sides protective layers ofasbestos, mineral wool or other fibrous material. I

The present invention has for its object to provide a superior' roofing and siding material of the class described. To this end, the protective layers are made wider and longer than the metal sheet to be protected land have theirroverlapping edges cemented or aflixed together air and moisture tight by lthe asphalt or other cement which isused to afix the said protective layers to the metal sheet, whereby the latter is hermetically the protected metal sheet, a nished and at-y.

' which particularly 'f adapts the protected 'sheet for use on the extractive appearance,

terior of buildings.

- Figure `1 represents in plan view two protectedsheets embodying this invention. Fig.

tion. Fig. 3, aA detail'in section on an enf .45' larged. scale of the waterproofed -sheet,vand.

Fig. 4, aV detail in section on an enlarged scale with the. waterproofing composition Referring to the drawings,ay represents a sheet of metal, preferably annealed steel tially free from perforations, and b, c, layers or sheets of asbestos, Imineral wool orv other -fibrous material, which are firmly ,)'united to the metal vsheet a by coatings or layers d-of asphalt or like cement. The

-rnotrno'rnn METAL SHEET.'

` z Specification of Letters Patent. Application led December 15, 1910. Serial No. 597,450.

Patented sept. 5, 1.911.

invention are made longer and wider than the metal sheet a, so as to overlap the latter d on all sides, and the overlappingedges 10, 12, (see Figs. 3 and 4), of said protective layers are united together and hermetically sealed by the cement 0l, which latter also ills the space between the united edges of the layers b, c, and the edges of the'metal sheet a, said filling being marked 13 in Figs. 3 and 4. v

The sheetv as thus far described is represented in Fig. 4, wherein the exterior surfacesv of the asbestos sheets are represented in their rough, fuzzyor naturaLcondition.

The .protected sheets represented in Fig. 4,l are capable of being used on the exterior or interior of a building, but in many cases, it is desired that the protected' sheets designed to be used on the exterior of a building should havea more finished and attractive appearance, land also have waterproofing properties. To this end, the sheet shown in Fig. 4, hasappli-ed to its exterior a' suitable Waterproof composition, which -moistens the exterior surface, and while in this moistened condition, said exterior surfaceis subjected to pressure, which serves to calender `and compact the moistened fibers of the' exterior surface and impart to the same a smooth, attractiveaond finished appearance, which is represented by the black line 14 in Fig'. 3,

andby the plain portion of thesheet shownA at the left inFig. 2. v

VIn Fig. 1,1 havefrepresented the manner in which the sealing is effected between contiguous metal sheets a on a practical' scale, the metal sheets a being passed up through a bath of the asphalt in a heated condition i and between the layers b, c, of asbestos,

which are in the form of continuous webs 0r 4sheets, `the metal sheets being fed through the bath of asphalt so as to leave a space between succeeding sheets so as to allow the two webs of asbestos to be cemented together between the metal sheets and of such width as to allow of the'same being cut on the line it-and form a sealing edge for each sheet.

\ From the above description, it will'be observed that the metal sheet is hermetically Sealed by the protective layers or sheets of asbestos or other fibrous material and the greatly adding to the' durability of material for either exterior or interior use andes- `interposed asphalt or vother cement, thereby formed layers of asbestos or like material of greaterY length and Width than said metal sheet and applied to the opposite surfaces of said metal sheet to entirely cover the same and overlap the edges thereof, andcemen't-i tious material interposed between the said metal sheet andsaid layers to ax the preformed layers to the metal sheet `and the overlapping edges to each other, substantially as described.

2. A material ofthe character described, comprising a metal sheet, independent preformed layers of asbestos or like material 'of greater length and width than said metal sheet and applied tothe 'opposite surfaces of said metal sheet to entirely cover the same and overlap theedges thereof, and cementitious material interposed between said metal sheet and said layers to afiix the preformed layers to the metal sheetand the overlapping edges to each other, said protective layers having their exterior surfaces smoothed comprising a metal sheethavingon each side a layer of asbestos or like material entirely covering the same and overlapping the edges of said metal sheet and affixed to said sheet and to each other by an asphalt cementto form a hermetically sealed pro.- tected metal sheet,substant-ially as described.

4. A material of the character described, comprising layers of protective brous material, a plurality of metal sheets interposed between said protective layers and separated from each othersaid protective layers overlapping the edges of said metal sheets on all sides, vand adhesive materialuniting said layers to said metal sheets and to each other between said metal sheets, substantially as v described. I In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

y EDGAR THOMASvNEl/VSOME. lVitnesses:

JAS. Hl CHURCHILL, J. M. 'MURPHY. 

